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		      Discussion Draft 3 of Version 3, 28 March 2007


 Copyright (C) 2007 Free Software Foundation, Inc. (
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.


  The GNU General Public License is a free, copyleft license for software
and other kinds of works.

  The licenses for most software and other practical works are
designed to take away your freedom to share and change the works.  By
contrast, the GNU General Public License is intended to guarantee your
freedom to share and change free software--to make sure the software
is free for all its users.  We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also
to any other program whose authors commit to using it.  You can apply
it to your programs, too.

  When we speak of free software, we are referring to freedom, not
price.  Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs, and that you know you can do these things.

  To protect your rights, we need to make requirements that forbid anyone
to deny you these rights or to ask you to surrender the rights.  Therefore,
you have certain responsibilities if you distribute copies of the software,
or if you modify it.

  For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received.  You must make sure that they, too,
receive or can get the source code.  And you must show them these
terms so they know their rights.

  Developers that use the GNU GPL protect your rights with two steps: (1)
assert copyright on the software, and (2) offer you this License which
gives you legal permission to copy, distribute and/or modify the software.

  For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software.  For both users' and
authors' sake, the GPL requires that modified versions be marked as
changed, so that their problems will not be associated erroneously with the
previous versions.

  Some devices are designed to deny users access to install or run
modified versions of the software inside them, although the
manufacturer can do so.  This is fundamentally incompatible with the
purpose of the GPL, which is to protect users' freedom to change the
software where changes are possible.  The systematic pattern of such
abuse occurs in the area of products for individuals to use, which is
precisely where it is most unacceptable.  Therefore, we have designed
this version of the GPL to prohibit the practice for those products.
If such problems arise substantially in other domains, we stand ready
to extend this provision to those domains in future versions of the
GPL, as needed to protect the freedom of users.

  Finally, every program is threatened constantly by software patents.
States should not allow patents to restrict development and use of
software on general-purpose computers, but in places where they do, we
wish to avoid the special danger that patents applied to a free
program could make it effectively proprietary.  To prevent this, the
GPL assures that patents cannot be used to render the program

  The precise terms and conditions for copying, distribution and
modification follow.


0.  Definitions.

  "This License" refers to version 3 of the GNU General Public

  "Copyright" also means copyright-like laws that apply to other
kinds of works, such as semiconductor masks.
  "The Program" refers to any copyrightable work licensed under this
License.  Each licensee is addressed as "you."  "Licensees" and
"recipients" may be individuals or organizations.

  To "modify" a work means to copy from or adapt all or part of the work in a
fashion requiring copyright permission, other than the making of a
verbatim copy.  The resulting work is called a "modified version" of
the earlier work or a work "based on" the earlier work.  A "covered
work" means either the unmodified Program or a work based on the

  A "contributor" is a party who licenses under this License a work on
which the Program is based.  Such a work is called the party's

  To "propagate" a work means to do (or cause others to do) anything
with it that requires permission under applicable copyright law,
except executing it on a computer or making modifications that you do
not share.  Propagation includes copying, distribution (with or
without modification), making available to the public, and in some
countries other activities as well.  To "convey" a work means any kind
of propagation that enables other parties to make or receive copies,
excluding sublicensing.  Mere interaction with a user through a
computer network, with no transfer of a copy, is not conveying.

  A party's "essential patent claims" in a work are all patent claims
owned or controlled by the party, whether already
acquired or hereafter acquired, that would be infringed by
some manner, permitted by this License, of
making, using, or selling the work, but do not include claims that
would be infringed only as a consequence of further modification of
the work.  For purposes of this definition, "control" includes the
right to grant sublicenses in a manner consistent with the
requirements of this License.

1. Source Code.

  The "source code" for a work means the preferred form of the work
for making modifications to it.  "Object code" means any non-source
form of a work.

  A "Standard Interface" means an interface that either is an official
standard defined by a recognized standards body, or, in the case of
interfaces specified for a particular programming language, one that
is widely used among developers working in that language.

  The "System Libraries" of an executable work include anything, other
than the work as a whole, that (a) is normally included in the
distribution of a Major Component, but which is not part of that Major
Component, and (b) serves only to enable use of the work with that
Major Component, or to implement a Standard Interface for which an
implementation is available to the public in source code form.  A
"Major Component", in this context, means a major essential component
(kernel, window system, and so on) of the specific operating system
(if any) on which the executable work runs, or a compiler used to
produce the work, or an object code interpreter used to run it.

  The "Corresponding Source" for a work in object code form means all
the source code needed to generate, install, and (for an executable
work) run the object code and to modify the work, including scripts to
control those activities.  However, it does not include the work's
System Libraries, or general-purpose tools or generally available free
programs which are used unmodified in performing those activities but
which are not part of the work.  For example, Corresponding Source
includes interface definition files associated with source files for
the work, and the source code for shared libraries and dynamically
linked subprograms that the work is specifically designed to require,
such as by intimate data communication or control flow between those
subprograms and other parts of the work.

  The Corresponding Source need not include anything that users
can regenerate automatically from other parts of the Corresponding

  The Corresponding Source for a work in source code form is that
same work.

2. Basic Permissions.

  All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
conditions are met.  This License explicitly affirms your unlimited
permission to run the unmodified Program.  The output from running a
covered work is covered by this License only if the output, given its
content, constitutes a covered work.  This License acknowledges your
rights of fair use or other equivalent, as provided by copyright law.

  Propagation of covered works that you do not convey, and making
modified versions of the Program that you do not convey, are permitted
without conditions, so long as your license otherwise remains in force.
Conveying is permitted under the conditions stated below.
Sublicensing is not allowed; section 10 makes it unnecessary.

3. No Denying Users' Rights through Technical Measures.

  No covered work shall be deemed part of an effective technological
measure under any applicable law fulfilling obligations under article
11 of the WIPO copyright treaty adopted on 20 December 1996, or
similar laws prohibiting or restricting circumvention of such

  When you convey a covered work, you waive any legal power to forbid
circumvention of technical measures to the extent such circumvention
is effected by exercising rights under this License with respect to
the covered work, and you disclaim any intention to limit operation or
modification of the work as a means of enforcing, against the work's
users, your or third parties' legal rights to forbid circumvention of
technical measures.

4.[1] Conveying Verbatim Copies.

  You may convey verbatim copies of the Program's source code as you
receive it, in any medium, provided that you conspicuously and
appropriately publish on each copy an appropriate copyright notice;
keep intact all notices stating that this License and any
non-permissive terms added in accord with section 7 apply to the code;
keep intact all notices of the absence of any warranty; and give all
recipients a copy of this License along with the Program.

  You may charge any price or no price for each copy that you convey,
and you may offer support or warranty protection for a fee.

5.[2] Conveying Modified Source Versions.

  You may convey a work based on the Program, or the modifications to
produce it from the Program, in the form of source code under the
terms of section 4 above, provided that you also meet all of these

    a) The work must carry prominent notices stating that you
    modified it, and giving a relevant date.

    b) The work must carry prominent notices stating that it is
    released under this License and any conditions added under section
    7.  This requirement modifies the requirement in section 4 to
    "keep intact all notices".

    c) You must license the entire work, as a whole, under
    this License to anyone who comes into possession of a copy.  This
    License will therefore apply, unmodified except as permitted by section 7,
    to the whole of the work, and all its parts, regardless of
    how they are packaged.  This License gives no permission to license the
    work in any other way, but it does not invalidate such permission
    if you have separately received it.

    d) If the work has interactive user interfaces, each must
    include a convenient feature that displays an appropriate copyright
    notice, and tells the user that there is no warranty for the work
    (unless you provide a warranty), that licensees may convey the
    work under this License, and how to view a copy of this License.
    Specifically, if the interface presents a list of user
    commands or options, such as a menu, a command to display this
    information must be prominent in the list; otherwise, the
    work must display this information at startup.  However, if the Program
    has interactive interfaces that do not comply with this subsection,
    your work need not make them comply.

A compilation of a covered work with other separate and independent
works, which are not by their nature extensions of the covered work,
in or on a volume of a storage or distribution medium, is called an
"aggregate" if the compilation and its resulting copyright are not
used to limit the access or legal rights of the compilation's users
beyond what the individual works permit.  Inclusion of a covered work
in an aggregate does not cause this License to apply to the other
parts of the aggregate.

 6.[3] Conveying Non-Source Forms.

   You may convey a covered work in object code form under the terms
of sections 4 and 5, provided that you also convey the
machine-readable Corresponding Source under the terms of this License,
in one of these ways:

    a) Convey the object code in, or embodied in, a physical product
    (including a physical distribution medium), accompanied by the
    Corresponding Source fixed on a durable physical medium
    customarily used for software interchange.

    b) Convey the object code in, or embodied in, a physical product
    (including a physical distribution medium), accompanied by a
    written offer, valid for at least three years and valid for as
    long as you offer spare parts or customer support for that product
    model, either (1) to give anyone who possesses the object code a
    copy of the Corresponding Source for all the software in the
    product that is covered by this License, on a durable physical
    medium customarily used for software interchange, for a price no
    more than your reasonable cost of physically performing this
    conveying of source, or (2) to provide access to copy the
    Corresponding Source from a network server at no charge.

    c) Convey individual copies of the object code with a copy of the
    written offer to provide the Corresponding Source.  This
    alternative is allowed only occasionally and noncommercially, and
    only if you received the object code with such an offer, in accord
    with subsection 6b.

    d) Convey the object code by offering access from a designated
    place (gratis or for a charge), and offer equivalent access to the
    Corresponding Source in the same way through the same place at no
    further charge.  You need not require recipients to copy the
    Corresponding Source along with the object code. If the place to
    copy the object code is a network server, the Corresponding Source
    may be on a different server (operated by you or a third party)
    that supports equivalent copying facilities, provided you maintain
    clear directions next to the object code saying where to find the
    Corresponding Source. Regardless of what server hosts the
    Corresponding Source, you remain obligated to ensure that it is
    available for as long as needed to satisfy these requirements.

    e) Convey the object code using peer-to-peer transmission, provided
    you inform other peers where the object code and Corresponding
    Source of the work are being offered to the general public at no
    charge under subsection 6d.

A separable portion of the object code, whose source code is excluded
from the Corresponding Source as a System Library, need not be
included in conveying the object code work.

A "User Product" is either (1) a "consumer product", which means any
tangible personal property which is normally used for personal,
family, or household purposes, or (2) anything designed or sold for
incorporation into a dwelling.  [In cases of doubt concerning whether
an item is a "consumer product", the interpretation of the
Magnuson-Moss Warranty Act, 15 U.S.C. 2301 et seq., shall provide the
basis for interpretation, regardless of the choice of law
determination for this License as a whole.]

"Installation Information" for a User Product means any methods,
procedures, authorization keys, or other information required
to install and execute modified versions of a covered work in that User
Product from a modified version of its Corresponding Source.  The
information must suffice to ensure that the continued functioning of
the modified object code is in no case prevented or interfered with
solely because modification has been made.

If you convey an object code work under this section in, or with, or
specifically for use in, a User Product, and the conveying occurs as
part of a transaction in which the right of possession and use of the
User Product is transferred to the recipient in perpetuity or for a
fixed term (regardless of how the transaction is characterized), the
Corresponding Source conveyed under this section must be accompanied
by the Installation Information.  But this requirement does not apply
if neither you nor any third party retains the ability to install
modified object code on the User Product (for example, the work has
been installed in ROM).

The requirement to provide Installation Information does not include a
requirement to continue to provide support service, warranty, or
updates for a work that has been modified or installed by the
recipient.  Network access may be denied when the modification itself
materially and adversely affects the operation of the network or
violates the rules and protocols for communication across the network.

Corresponding Source conveyed, and Installation Information provided,
in accord with this section must be in a format that is publicly
documented, with an implementation available to the public in source
code form, and must require no special password or key for unpacking,
reading or copying.

7. Additional Terms.

  "Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law.  If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.

  When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it.  (Additional permissions may be written to require their own
removal in certain cases when you modify the work.)  You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.

  Notwithstanding any other provision of this License, you may
supplement the terms of this License with terms effective under, or
drafted for compatibility with, local law:

  a. disclaiming warranty or limiting liability differently from the
  terms of section 15 of this License; or

  b. requiring preservation of specified reasonable legal notices or
  author attributions in source or object code forms of material added
  by you to a covered work; or
  c. prohibiting misrepresentation of the origin of material added by
  you to a covered work, or requiring that modified versions of such
  material be marked in reasonable ways as different from the original
  version; or

  d. limiting the use for publicity purposes of specified names of
  licensors or authors, or of specified trade names, trademarks, or
  service marks, to the extent otherwise permitted by law.

  All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10.  If the Program as you
received it, or any part of it, purports to be governed by this
License, supplemented by a term that is a further restriction, you may
remove that term.  If a license document contains a further
restriction but permits relicensing or conveying under this License,
you may add to a covered work material governed by the terms of that
license document, provided that the further restriction does not
survive such relicensing or conveying.

  If you add terms to a covered work in accord with this section, you
must place, in the relevant source files, a statement of the
additional terms that apply to those files, or a notice indicating
where to find the applicable terms.

  8.[4] Termination.

  You may not propagate or modify a covered work except as expressly
provided under this License.  Any attempt otherwise to propagate or
modify it is void.  If you violate this License, any copyright holder
may put you on notice by notifying you of the violation, by any
reasonable means, provided 60 days have not elapsed since the most
recent violation.  Having put you on notice, the copyright holder may,
at any time, terminate the rights (including any patent rights) that
the copyright holder has granted to you under this License.

  However, if this is your first violation of this License with
respect to a given copyright holder, and you cure the violation within
30 days following your receipt of the notice, then your license is
automatically reinstated.

  In the event that your rights are terminated under this section,
parties who have received copies, or rights, from you under this
License will not have their licenses terminated so long as they remain
in full compliance.

  9.[5] Acceptance Not Required for Having Copies.

  You are not required to accept this License in order to receive or
run a copy of the Program.  Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance.  However,
nothing other than this License grants you permission to propagate or
modify any covered work.  These actions infringe copyright if you do
not accept this License.  Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.

  10.[6] Automatic Licensing of Downstream Recipients.

  Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License.  You are not responsible
for enforcing compliance by third parties with this License.

  An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations.  If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives whatever
licenses to the work the party's predecessor in interest had or could
give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest.

  You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License.  For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program (or the contribution of any

  11. Patents.

  Each contributor grants you a non-exclusive, worldwide, royalty-free
patent license under the contributor's essential patent claims in its
contribution, to make, use, sell, offer for sale, import and otherwise
run, modify and propagate the contribution.

  For purposes of the following three paragraphs, a "patent license"
means a patent license, a covenant not to bring suit for patent
infringement, or any other express agreement or commitment, however
denominated, not to enforce a patent.

  If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
publicly available network server or other readily accessible means,
then you must either (1) cause the Corresponding Source to be so
available, or (2) disclaim the patent license for this particular
work, or (3) arrange, in a manner consistent with the requirements of
this License, to extend the patent license to downstream
recipients. "Knowingly relying" means you have actual knowledge that,
but for the patent license, your conveying the covered work in a
country, or your recipient's use of the covered work in a country,
would infringe one or more identifiable patents in that country that
you have reason to believe are valid.
  If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license providing freedom to use,
propagate, modify or convey a specific copy of the covered work to any
of the parties receiving the covered work, then the patent license you
grant is automatically extended to all recipients of the covered work
and works based on it.

  You may not convey a covered work if you are a party to an
arrangement with a third party that is in the business of distributing
software, under which you make payment to the third party based on the
extent of your activity of conveying the work, and under which the
third party grants, to any of the parties who would receive the
covered work from you, a patent license (a) in connection with copies
of the covered work conveyed by you, and/or copies made from those, or
(b) primarily for and in connection with specific products or
compilations that contain the covered work, which license does not
cover, prohibits the exercise of, or is conditioned on the
non-exercise of any of the rights that are specifically granted to
recipients of the covered work under this License[, unless you entered
into that arrangement, or that patent license was granted, prior to
March 28, 2007].

  Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.

  12.[7] No Surrender of Others' Freedom.

  If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License.  If you cannot convey the
Program, or other covered work, so as to satisfy simultaneously your
obligations under this License and any other pertinent obligations, then as
a consequence you may not convey it at all.  For example, if you agree to terms
that obligate you to collect a royalty for further conveying from those to whom
you convey the Program, the only way you could satisfy both those terms and
this License would be to refrain entirely from conveying the Program.

  13. Use with the Affero General Public License.

  Notwithstanding any other provision of this License, you have
permission to link any covered work with a work licensed under version
2 of the Affero General Public License, and to convey the resulting
combination.  The terms of this License will continue to apply to your
covered work but will not apply to the work with which it is linked,
which will remain governed by the Affero General Public License.

  14.[9] Revised Versions of this License.

  The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time.  Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.

  Each version is given a distinguishing version number.  If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation.  If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.

  If the Program specifies that a proxy can decide whether future
versions of the GNU General Public License shall apply, that proxy's
public statement of acceptance of any version is permanent
authorization for you to choose that version for the Program.

  15.[11, 12] Disclaimer of Warranty and Limitation of Liability.



  If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.


	    How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, see
    or write to the Free Software Foundation,Inc., 51 Franklin Street,
    Fifth Floor, Boston, MA 02110-1301  USA

Also add information on how to contact you by electronic and paper mail.

If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:

    Gnomovision version 69, Copyright (C) year  name of author
    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, the commands you use may
be called something other than `show w' and `show c'; for a GUI interface,
you would use an "About box" instead.

You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary.  Here is a sample; alter the names:

  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  `Gnomovision' (which makes passes at compilers) written by James Hacker.

  <signature of Ty Coon>, 1 April 1989
  Ty Coon, President of Vice

For more information on how to apply and follow the GNU GPL, see

The GNU General Public License does not permit incorporating your program
into proprietary programs.  If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library.  If this is what you want to do, use the GNU Lesser General
Public License instead of this License.
by brett last modified 2007-06-29 16:31

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